hmwrk 4 - 4 It is more likely that the distribution is...

Paige Sprague 1. Inclusive fitness is determined by an individual’s own survival and reproduction plus the survival and reproduction of individuals with whom the individual shares genes. According to Hamilton’s rule you need to know the genetic relatedness of the helper and the recipient of the help, the reproductive benefit gained by the recipient, and the reproductive cost to the helper of giving aid. If this shows the relative with benefit the individual, resources will be diverted such as help from the individual to kin. 2. Plot Density Squared deviates 1 2 2.25 2 1 6.25 30 12.25 4 2 2.25 5 7 12.25 6 5 2.25 7 6 6.25 8 2 2.25 9 9 30.25 10 1 6.25 Totals: 35 82.5 mean shrub density: 3.5 Sample variance in shrub density: 9.17 3. She can conclude that her hypothesis is incorrect for regular spacing of the individuals.

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Unformatted text preview: 4. It is more likely that the distribution is clumped because the variance is greater than the mean. A new hypothesis could be that the shrubs grow clumped because it helps to keep the clumps of shrubs cool. An experiment to test this hypothesis could be to access temperatures and moisture content around the leaves of the shrubs as well as leaf evaporation rates, size, shape, and texture. 5. The bison meets two of Robinowitz’s criteria for extreme rarity. It has a restricted range and small populations. Its range is restricted because the plains of America have changed drastically typically to farmland. Also, predation from animals and humans has dramatically decreased the number of individuals. Populations are limited to protected areas of land....
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